...This is a ultra-small digital spy camera that hidden in a Mini USB ComputerVacuumCleaner , it looks like a Mini USB ComputerVacuumCleaner , but it has a very powerful function, the most interest is that it internally......

... is unlimited. 2. This machine is used to test armature for kinds of power tool and vacuumcleaner. 3. The software will give acousto-optic alarm accordingly when armature is rejected. 4. Single station/double......